Our annual year-in-review story in December is always packed with editors' picks for the best our city has to offer. But you also have a say: Vote for your favorites--everything from casinos to CrossFit studios--in our Best of 2015 Readers' Choice poll. Make your choice right here by Monday, July 20. Winners will be featured in the magazine.

Richard Sprague keeps samples of his own feces, in the family freezer, so he can send them to a Stanford University laboratory. Some days he tries to improve his sleep by swallowing potato starch to feed a certain population of microbes in his gut. Lately, he’s been studying his brain acuity every morning to see if changes in his diet can influence it.A 52-year-old father of three and an ex-Microsoft manager who lives on Mercer Island, Sprague is a volunteer, among thousands of others, in a movement called “citizen science.”